Chimney block



Feb. 2 1926. 1,571,387

5. D. VOORHEES CHIMNEY BLOCK Filed April 23, 1923 ATTORNEY Patented Feb. 2, 1926.

UNITED STATES SAMUEL D. VOORHEES, 0F BAY CITY, MICHIGAN.

CHIMNEY BLook.

Application filed April 23, 1923. Serial No. 833,915.

To all whom it may concern: 7

Be it known that I, SAMUEL D. Voorrrnns, a citizen of the United States of America, anda resident of Bay City, in the county of Bay and State of Michigan; have invented certain new and useful Improvements n Chimney Blocks, of which the following 1s a specification.

This invent-ion relates to chimney blocks and the like, and particularly to a block which is cast in a mould and then cured.

One object of the invention is to provide a chimney block which can be superimposed one upon the other to form a complete chimney, which can be securely bonded together, and which will form a strong and rigid structure.

Another object of the invention is to design a chimney block which will be convenient to handle, and economical to lay and manufacture.

A further object is to design a block having an inner smoke flue surrounded by an outer shell and separated therefrom by air spaces having communicating passages to the end that the blocks when laid will function as a ventilator as well as a chimney.

A further object still is to provide a chimney block of neat appearance which can be laid by inexperienced labor, and without the use of a masons trowel or other instrument.

With the above and other objects in view, the present invention consists in the combination and arrangement of parts, hereinafter more fully described, illustrated in the accompanying drawings and particularly pointed out in the appended claims, it being understood that changes may be made in the form, size, proportion and minor details of construction without departing from the spirit, or sacrificing any of the advantages of the invention.

In the drawing Fig. 1 is a top plan view of my improved chimney block.

Fig. 2 is a part sectional view thereof taken on the line 2-2 of Fig. 1.

Fig. 3 is also a side View illustrating a ventilator pipe connected thereto.

Fig. 4 is a part sectional side view illustrating the forming of one of the radial partitions.

Referring now particularly to the drawing in which I have shown the preferred and pleasing appearance.

embodiment of my invention, the numeral 1 indicates the chimney block which can be cast of any suitable material, but I prefer to cast it of concrete so that it can be faced with granite'or the like to present a neat Blocks of this nature are usually cast in gangs in moulds and are allowed to cure for a certain length of time after being cast.

The block proper comprises an outer external shell 1 having a central smoke flue 2 cast integral therewith, and which is connected to the outer shell by means of the radial partitions 3 extending to the corners of the block for reinforcing and properly spacing the smoke flue therein.

A cored opening 4 is formed at each corner of the block, and in constructing the chimney these blocks are laid on top of each other in superimposed relation, consequently each of the openings 4 in each block will be in direct vertical alinement with the same openings and lower edges 1 of the outer shell of each block and communicate with the openings 4 formed in the corners thereof, and when the blocks are placed one upon the other, a communicating substantially horizontal passage 6 is formed between the several vertical cored holes. These passages are adapted to be filled with a neat mixture of cement of a thin consistency, and this is accomplished by employing an ordinary funnel member 7 such as shown in position in Fig. 2, the mixture being handled in a suitable receptacle and is poured thereinto. As above stated this mixture is of a consistency to allow itto freely flow into the passages 5, but I wish to direct particular attention to the fact that the passages are slightly pitched towards the center of the funnel, and when the thin mixture is poured into the funnel, it flows down the vertically disposed opening 4 and thence in two directions into the communicating passages 5, the pitching of said passages insuring the complete filling thereof and when this is set forms a rigid and air-tight structure.

A suitable opening 8-can be cored in the block for the reception of a thimble 9 to which a ventilating pipe can be connected, and this opening communicates with the air space 10 around the flue, the individual air spaces are connected by an opening 11 in one partition, as clearly shown in Fig. 4; and as each block is laid, this partition is placed at an angle of ninety degrees to the bottom block thereby providing a spiral communieating passage.

For centering the blocks one upon the other I step both edges of the smoke flue as clearly shown in F ig. 3, the one edge 12 projecting beyond the edge of the block proper and being nested in the channel 13 formed in the opposite end of the lower block, this facilitates the laying, and forms a tight joint thereat.

I' \vish to also direct attention to the fact that While in the present instance I have shown a square block having a round smoke flue therein I Wish itclearly understood that any desired shape can be used, and I do not wish to be limited to the specific shape or form as shown.

From the foregoing description it will be obvious that I have perfected an improved chimney block of simple construction which canbe laid by inexperienced help and'which is simple and economical to manufacture.

What I claim is 1. A chimney block comprising an outer shell having spaced apart vertically disposed'openings therein, and communicating with a continuous channel formed in the top and bottom-edges of the block, said channels being pitched from the said openings.

2. A chimney block comprising an outer. shellhaving' a centrally disposed smoke flue connected thereto, pitched channels formed in the topa-nd bottom edges of the shell and spaced apart vertically disposed openings communicating therethrough.

In testimony whereof, I afiix my signature.

SAMUEL D. voonmcns. 

